package com.wc._16届国特冲刺营._01暴力拆解._2的2023次方;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.StringTokenizer;

/**
 * @Author congge
 * @Date 2025/5/22 8:16
 * @description
 * https://www.lanqiao.cn/courses/51805/learning/?id=4084022&compatibility=false
 */
public class Main {
    /**
     * 思路：
     * 费马小定理
     * a^b % p = a ^ (b % (p - 1)) % p
     */
    static FastReader sc = new FastReader();
    static PrintWriter out = new PrintWriter(System.out);
    static int P = 2023;

    public static void main(String[] args) {
        long res = 1;
        long b = 1;

        for (int i = 2023; i >= 3; i--) {
            b = qmi(i, b, P - 1);
        }
    }

    static long qmi(long a, long b, long p) {
        long res = 1;
        while (b > 0) {
            if ((b & 1) == 1) res = res * a % p;
            a = a * a % p;
            b >>= 1;
        }
        return res;
    }
}

class FastReader {
    StringTokenizer st;
    BufferedReader br;

    FastReader() {
        br = new BufferedReader(new InputStreamReader(System.in));
    }

    String next() {
        while (st == null || !st.hasMoreElements()) {
            try {
                st = new StringTokenizer(br.readLine());
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        return st.nextToken();
    }

    int nextInt() {
        return Integer.parseInt(next());
    }

    String nextLine() {
        String s = "";
        try {
            s = br.readLine();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return s;
    }

    long nextLong() {
        return Long.parseLong(next());
    }

    double nextDouble() {
        return Double.parseDouble(next());
    }

    // 是否由下一个
    boolean hasNext() {
        while (st == null || !st.hasMoreTokens()) {
            try {
                String line = br.readLine();
                if (line == null)
                    return false;
                st = new StringTokenizer(line);
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
        return true;
    }
}

